A kind of pure bromobutyl rubber inner liner and its mixing method and application

A technology of bromobutyl rubber and airtight layer, which is applied in the field of rubber mixing, can solve problems such as carbon black agglomeration, achieve good airtightness, avoid abnormal damage, and be easy to promote
CN111745848BActive Publication Date: 2021-05-07TONGLI TIRE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGLI TIRE CO LTD
Publication Date
2021-05-07

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Abstract

The invention relates to a pure bromobutyl rubber airtight layer and its mixing method and application, belonging to the field of rubber mixing, including: adding rubber, compounding agent, and carbon black to the mixing device, and performing the mixing at a low speed I Crushing; when the temperature reaches 90-95°C, add process oil and mix at high speed; when the temperature reaches 125-130°C, disperse and mix at low speed II; when the temperature reaches 135-140°C, deglue, Cooling and standing still to obtain a master batch; mixing the master batch with a vulcanizing agent and an accelerator, and performing final rubber mixing to obtain a final rubber batch. The method of the present invention can well solve the technical problem that carbon black agglomeration is easily produced when mixing with a shear-type full-square rotor, and is more stable than the mixed rubber produced by using a full-square rotor in the existing mixing method, and the carbon black The dispersion is more uniform, and there is no carbon black agglomeration, and the carbon black dispersion of the rubber compound produced by using the ZZ2 rotor is higher and the air tightness is better.
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Description

technical field

[0001] The invention belongs to the field of rubber mixing, in particular to a mixing method of pure bromobutyl rubber inner liner. Background technique

[0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0003] Butyl rubber has the advantages of good airtightness, flexibility, weather resistance and chemical stability, making butyl rubber and its main derivative halogenated butyl rubber the most suitable material for maintaining the airtightness of automobile tires. Bromobutyl rubber has higher activity and compound viscosity than chlorinated butyl rubber. Pure bromobutyl rubber has better airtightness, which can reduce airtightness while ensuring airtightness. The thickness of the lay...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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